From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 32457 invoked by alias); 11 Dec 2015 12:12:01 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 31233 invoked by uid 89); 11 Dec 2015 12:12:00 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.1 required=5.0 tests=AWL,BAYES_40,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-qk0-f182.google.com Received: from mail-qk0-f182.google.com (HELO mail-qk0-f182.google.com) (209.85.220.182) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Fri, 11 Dec 2015 12:11:58 +0000 Received: by qkdb5 with SMTP id b5so35018948qkd.0 for ; Fri, 11 Dec 2015 04:11:56 -0800 (PST) X-Received: by 10.129.92.3 with SMTP id q3mr8229187ywb.256.1449835916127; Fri, 11 Dec 2015 04:11:56 -0800 (PST) MIME-Version: 1.0 Received: by 10.129.135.66 with HTTP; Fri, 11 Dec 2015 04:11:16 -0800 (PST) In-Reply-To: References: From: Jan Bruun Andersen Date: Fri, 11 Dec 2015 12:12:00 -0000 Message-ID: Subject: Re: Cygwin unable to resolve hostnames To: cygwin@cygwin.com Content-Type: text/plain; charset=UTF-8 X-SW-Source: 2015-12/txt/msg00131.txt.bz2 The only thing in that list of interfaces that have IP is the "Ethernet adapter Ethernet0". Right of my head I don't see anything obviously wrong. My first suggestion would be to disable IPv6 on the adapter, just on the odd chance that it is the cause. After that I would start ping'ing the default gateway by IP-address (192.168.244.2). This also happens to be where your DNS lives, so that will test 2 issues in one go. Jan Bruun Andersen On 11 December 2015 at 11:18, Carl-Erik Kopseng wrote: >> > I'm not sure when this started, but recently Cygwin has been unable to >> > resolve (certain) hostnames. >> > >> > Example: >> > wget github.com >> > --2015-07-22 15:17:04-- http://github.com/ >> > Resolving github.com (github.com)... failed: Non-recoverable failure >> > in name resolution. > [snip] > > I have the same problem and I have just made a clean Cygwin64 install > on a computer that has never had Cygwin installed before. I have not > messed with any settings, yet I also cannot use curl or git to access > almost any site. Only the built-in Windows CLI tools, such as `ping`, > works. > >> > Any ideas? >> >> Cygwin by default uses the same resolution as Windows, that means that >> you have something in Cygwin's configuration that affects resolution. >> First and most obvious is /etc/resolv.conf; by default I don't think >> there is one, but you can create it and Cygwin will use it. > > Pointers on what to actually put in that file? > >> Next would be if you have more than one DNS resolver in your (Windows) >> network configuration, this means that any one of them can be used at >> any time (literally it should be random)... and by coincidence Cygwin is >> using one that doesn't work, the Web browser is using another, and >> things change with different tests. Run 'ipconfig -all' and see under >> the network adapter what's listed for "DNS Servers". >> >> Also if there is more than one network adapter something similar to the >> last paragraph will happen. I would think that Cygwin uses the DNS >> servers on the "default" adapter. > > I am guessing my problems have something to do with this part, as I am > running Windows 8.1 in VMWare. VMWare adds lots of weird network stuff, > all of which I am not too familiar with ... > > The below output is from `ipconfig /all`. Could any of the info be put > in the aforementioned resolv.conf file? > > > Windows IP Configuration > > Host Name . . . . . . . . . . . . : macbookpro > Primary Dns Suffix . . . . . . . : > Node Type . . . . . . . . . . . . : Hybrid > IP Routing Enabled. . . . . . . . : No > WINS Proxy Enabled. . . . . . . . : No > DNS Suffix Search List. . . . . . : localdomain > > Ethernet adapter Bluetooth Network Connection 2: > > Media State . . . . . . . . . . . : Media disconnected > Connection-specific DNS Suffix . : > Description . . . . . . . . . . . : Bluetooth Device (Personal Area > Network) #2 > Physical Address. . . . . . . . . : 00-50-56-E2-FB-E9 > DHCP Enabled. . . . . . . . . . . : Yes > Autoconfiguration Enabled . . . . : Yes > > Ethernet adapter Ethernet0: > > Connection-specific DNS Suffix . : localdomain > Description . . . . . . . . . . . : Intel(R) 82574L Gigabit Network > Connection > Physical Address. . . . . . . . . : 00-0C-29-6A-39-52 > DHCP Enabled. . . . . . . . . . . : Yes > Autoconfiguration Enabled . . . . : Yes > Link-local IPv6 Address . . . . . : fe80::20b9:f45e:9310:3f4a%9(Preferred) > IPv4 Address. . . . . . . . . . . : 192.168.244.145(Preferred) > Subnet Mask . . . . . . . . . . . : 255.255.255.0 > Lease Obtained. . . . . . . . . . : Friday, December 11, 2015 10:59:56 > Lease Expires . . . . . . . . . . : Friday, December 11, 2015 11:29:56 > Default Gateway . . . . . . . . . : 192.168.244.2 > DHCP Server . . . . . . . . . . . : 192.168.244.254 > DHCPv6 IAID . . . . . . . . . . . : 167775273 > DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-89-39-FB-14-10-9F-E1-7B-95 > DNS Servers . . . . . . . . . . . : 192.168.244.2 > Primary WINS Server . . . . . . . : 192.168.244.2 > NetBIOS over Tcpip. . . . . . . . : Enabled > > Tunnel adapter Teredo Tunneling Pseudo-Interface: > > Connection-specific DNS Suffix . : > Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface > Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 > DHCP Enabled. . . . . . . . . . . : No > Autoconfiguration Enabled . . . . : Yes > IPv6 Address. . . . . . . . . . . : > 2001:0:5ef5:79fb:867:2876:3f57:b6e(Preferred) > Link-local IPv6 Address . . . . . : fe80::867:2876:3f57:b6e%7(Preferred) > Default Gateway . . . . . . . . . : :: > DHCPv6 IAID . . . . . . . . . . . : 218103808 > DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-89-39-FB-14-10-9F-E1-7B-95 > NetBIOS over Tcpip. . . . . . . . : Disabled > > Tunnel adapter isatap.localdomain: > > Media State . . . . . . . . . . . : Media disconnected > Connection-specific DNS Suffix . : localdomain > Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2 > Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 > DHCP Enabled. . . . . . . . . . . : No > Autoconfiguration Enabled . . . . : Yes > > > Regards > Carl-Erik Kopseng > > -- > Problem reports: http://cygwin.com/problems.html > FAQ: http://cygwin.com/faq/ > Documentation: http://cygwin.com/docs.html > Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple > -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple